#loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(170, 170, 172, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    font-size: 20px;
}